Star A2000 cannot delete existing google account

I have just bought an Andriod A2000 from my friend, but I cannot access or download any new apps as it refers to her original google account and password, which I do not have. I have done a factory reset, I have tried the "hold down and wait for menu option" to delete (doesn't have that option) and I've gone out and bought a usb connection so that I can try and access the root dir and or the supplied disk.....the problem is that the supplied disk is in chinese (as is the website) and I cannot find any drivers to do anything with it! Please please PLEASE can someone help me with this by either sending me the drivers or offering a better alternative. I'm not that savey with these things and am really struggling with my first ever smart phone.